Boiler



Feb. 7, 1939.

W. M. ROTH BOILER Filed March 8, 1937 4 Sheets-Sheet l NNSN NN QNInventor WmeZEa/ W. M, ROTH Feb. 7, y193.9.

BOILER Filed March 8, 1937 4 Sheets-Sheet 2 WrzJeZaf/ 9 By 2m orneys w.M. ROTH Feb. 7, 1939.

BOILER Filed March S, 1957 4 Sheets-Sheet 3 CZIIZISLZT.

I I p I I Inventor ma. l

y A torneys Feb. 7, 1939. w. M. ROTH 2,146,094

BOILER Filed March 8, 1957 4 Sheets-Sheet 4 ww @u Patented Feb. 7, 1939UNITED STATES PATENT OFFICE Application March 8,

8 Claims.

This invention relates to new and useful improvements in liquid heatingapparatus and more particularly to a novel boiler construction.

The principal object oi the present invention istoA provide a boilerconstruction which broadly consists of a plurality of vertical boilersections and a main water receiver common to all of the sections.

Another important object of the invention is mfftoprovide a sectionalboiler construction broadly consisting of a main water receiver and aplurality of vertical boiler sections extending laterally therefrom.

n Still another important object of the invention lis to provide aboiler construction in which a plurality of vertical water heatingsections are provided in conjunction with a common water receiver andwherein the sections are of duplicate construction permittingreplacement without Zorregard to location in the boiler.

A further object is to provide a boiler construction of the multiplevertical sectional type wherein va main water receivei` is providedAcommon to all of the sections and in which an auxiliary z5/steamchamber is afforded which is available when the boiler is employed forsteam heating. Still a further object of the invention is to provide aboiler wherein the vertical sections are of identical construction andwhich do not 20- have any water connection between the same. Anotherimportant object of the invention is to provide a boiler in which aone-way circulation `is maintained.

Other important objects and advantages re- :is side in the simplicity ofconstruction affording manufacture at a low cost, accommodations forgeneral utility water heating coils and the special treatment of thewater in small quantities to promote thorough heating thereof, as wellas .io numerous other features which will become apparent to the readerof the following specification.

In the drawings:- -Figure l represents a side elevational View of 45 theboiler.

rFigure 2 is a vertical sectional view transversely through the verticalsections.

Figure 3 is a vertical sectional view on the line 3 3 of Figure 1.

Figure 4 is a fragmentary horizontal sectional view substantially ontheline 4 4 of Figure 3.

Figure `5 is a vertical sectional View substantially on the line 5 5 ofFigure 3.

Figure 6 'is a side elevational view of the water 55 receiver.

1937, Serial No. 129,697

Figure 7 is a side elevational View of one of the sections.

Figure 8 is a rear elevational View of one of the sections, facing thewater receiver.

Figure 9 is a iront elevational view of one of the sections, facing thewater receiver.

Figure 10 is a vertical sectional view on the line in l of Figure 7.

Figure l1 is a fragmentary sectional view on the line H II oi Figure '7.

Figure 12 is a horizontal sectional view on the line l2 !2 of Figure '7.

Figure 13 is an enlarged detailed sectional view substantially on theline |3 l3 of Figure 8.

Referring to the drawings wherein like numerals designate like parts, itcan be seen especially in Figure 3, that the boiler involves a waterreceiver 5 which is common to all of the sections 6. In fact, thesesections 6 extend laterally from the receiver 5 as Suggested in Figure 4and for a twin type boiler, these sections may extend from oppositesides of the receiver 5 with but little reformation of the receiver, andconnections to the same,

Asis shown in Figure 5, numeral 'i denotes the water Supply line to thechamber 8 at the bottom of the receiver 5. The chamber 8 is divided fromthe chamber 9 by the horizontal partition I il havingr the openings Iltherein.

Extending upwardly from the partition I0 is the vertical partition I2dividing the narrow lower portion of the receiver 5 into the passagewaysi3 and i4. In the wider upper portion of the receiver 5 can be mountedthe general utility water heating coil or coils l5 upon which is thewater level i5. The upper portion of the receiver 5 can be regarded asthe steam dome when the boiler is being used in steam heating. At thetop of the receiver 5 is the outlet I'l for hot water or steam as theheating system may call for.

Each of the sections 6 consists of a main horizontal passageway I8 atits lower portion from which extend the outwardly disposed outside waterconduits Illand the inside water conduits 2l 22. The conduits 2| 22merge together in the manifold 23 and from this manifold rises the neck24, rising into the main chamber 25 oi the sections into which emptiesthe conduits |9 20. Thus as water is received in the passageway i8 itwill rise through four separate conduits and the water thus divided intothese small quantities will more thoroughly heat than when water ispassed in one column through the heating zone.

It can also be seen that the manifold 23, passageway i8, and conduits2|-22 define an opening in each of the sections 5 which openingscombined denne a combustion chamber 26 and it can further be observed inFigure 3 that the upper portion of each of the conduits lil-25 is spacedfrom the top portion of the manifold 23 to afford lateral passageways2'I-2'l for the hot products of combustion.

' As can be seen in Figure 8, as well as in Figure 9, the conduits 2li-22 and 2| are substantially narrower than the conduit |9 and this isalso true of the manifold 23 and main water compartment 25. Thus heatfrom the combustion chamber 26 can strike the sides of the conduits 2|,22 and titl and the products of combustion can pass upwardly between themanifold 23 and side walls of the water compartment 25.

At this point attention is directed to Figures 7 and 8 showing the heatconducting fins which also serve as baffles.

It can be seen, that the products of combustion passing upwardly betweenthe sections will rst strike the horizontal centrally located balles Zwhich will cause lateral spreading of the ,hot gases. From the ends ofthis baffle 28 the gases will rise until they strike the laterallydisposed baliies 29 which will cause the hot gases to pass inwardlyabove the baflle 28 and longitudinally along the ns 35 until the innerarea 3| is reached where the gases pass upwardly until they strike thesecond centrally located bae 32 which again causes lateral spreading ofthe hot gases longitudinally along the ns 33 until the lateralV areas 34are reached wherein the gases pass upwardly and strike against the shortbaffles 35`35 which again causes inward movement of the gases throughthe ns 36. The openings 31-38 in the upper portions of the sections 6define horizontal flues for the products of combustion having theiroutlets at the manifold 39 and from which the nue pipe 49 extends. Y

As shown in Figure 3, numeral 4| represents a connection between asection and the receiver 5 forming the water inlet to the receiver,while numeral 42 represents another connection of tubular constructionbetween the same section and the receiver and forming the outletr of thereceiver to the passageway I8.

Connecting the upper end of each of the sections 6 to the upper portionof the receiver 5 is the third connection generally referred to bynumeral 43 and this connects with the conduit 44 which inclines towardthe receiver 5.

Each of these connections 4|, 42 and 44 consists of a tubular member 45externally threaded to engage into the corresponding section 6 and morespecifically a boss formation 6a thereof and it is preferable that thesebosses 6a be countersunk as at 5b to receive tapering teats 5a on theinner wall of the receiver 5. The receiver end of the tube 45 is flangedas at 45 to abut the wall of the receiver 5 and is internally providedwith wrench receiving recesses 4l. A suitable wrench or the like can beinserted into the upper portion of the receiver 5 after the trap doors48 have been removed for engaging the tubes 45 and unscrewing the sameto permit detachment of the desired section 6. The connections 4| canalso be reached through the trap door openings in the top of thereceiver 5, while openings are provided in the outer wall of thereceiver adjacent the bottom thereof to permit access to the connection42. These openings being normally .plugged as at 49.

As is clearly shown in the drawings, the entire boiler is provided withan external shell con-` sisting of the top wall 56, front and rear walls53--54, respectively, and the side walls 5l-52. It can be seen that thefront wallY of the shell has a plurality of elongated verticallydisposed openings therein normally closed by the plates 55, which platescan be removed to permit access to the fins and baflles shown in Figure7 whereby the same can be easily cleaned. It can also be seen that thecombustion chamber is provided with a cover plate 55 at the front wall54.

Opposite ends of the chamber 8 at the bottom of the water receiver 5 areprovided with openings, one of which is plugged as at 5l. This plug canbe removed for permitting easy cleaning out of the said chamber 8 whenmud and other refuse collect therein.

In the operation of this boiler, it can be seen that when water heat isto be the service, the receiver is lilled to approximately the topthereof and the lire is started in the combustion cham- J ber 26. Waterwill rise in the chamber 25 and pass into the top of the receiver 5, as:waterY descends in the receiver 5 to pass through the outlet V42 to thepassageways it of the Sectio-ns 6.

As heat directly passes between the conduitsiii-22 .and heats theadjacent walls of the sections 6 and receiver 5, the partition |2 in thelower portion of the receiver is used to divide the lower portion ofthereceiver into the compartments |3-l4. Thus water heated in thecornpartment I3 can rise while water in the compartment i4 is free todescend and pass through the openings to reach the chamber 8 and outlet42. Thus this circulation in the lower portion of the receiver 5 iscontemplated to reduce friction and not hinder the one-Way circulationof water from the receiver through each individual section 6.

As water passes into the passageway |8, it risesy through all four ofthe conduits I9, 25, 2| and 'Y 22 and in these small columns water isthoroughly heated', the water from the conduits .2l- 22, mixing in themanifold 23, while water from the conduits 59-25 mixes with the waterfrom the manifold 23 as it emergesfrom the neck 24.

At this point it will be observed, that at all points where sediment canoccur the surface is inclined so that all sediment will either be keptin circulation or settle upon the lowest point in the boiler which, ofcourse, will be the bottom of thechamber 8 where the sludge, mud andother refuse can be easily reached.

When the boiler is being used for steam heat-V ing service, the waterlevel is lower at approximately the line |6 and as the water vaporleaves the surface of the water, it strikes against the hot transverseflues 3l in the section 6. This action of the water vapors against thesehot transverse passageways 3l actually causes .a

flashing of the water vapors into a dry steam which passes upwardlyalong the conduit 44 to the steam chamber or dome which will be abovethe water level in the receiver5; f

It should also be taken into consideration,

that in the event any one of the sections 6 be- Y started. Of course, itis not necessary that the defective sections actually be removed fromthe shell, as a plug may be driven into the tubular members 45 of theconnections 4|, 42 and 43 after water has been drained from the boilerso as to completely shut off that particular section, but this will notdisrupt the service of the boiler in regard to the remaining sections 6.At a later time, the defective section can be replaced.

This boiler, while primarily meant for oil or heating gas use canreadily be adapted to other fuel consumption by. a few minor changeswhich do not affect the scope of the invention.

Due to the construction and disposition of the baiiles on the sections 6(see Fig. 3) manifolds 23 are brought in close proximity of the firewithout restricting the necessary combustion area. This allows for rapidheat absorption and greatly increases the efficiency of the boiler.

While the foregoing specification sets forth the invention in specificterms, it is to be understood that numerous changes in the shape, sizeand materials may be resorted to without departing from the spirit andscope of the invention vas claimed hereinafter.

Having described the invention what is claimed as new isz- 1. A boilercomprising a main water receiver, and removable water heating sectionsextending laterally from the receiver, said sections having openings inthe lower portions thereof which when the sections are assembledtogether define a combustion chamber.

2. A boiler comprising a main water receiver, and removable waterheating sections extending laterally from the receiver, said receiverhaving water inlets and outlets at its upper and lower portionscommunicating the sections with the receiver, and a partition in thelower portion thereof permitting water on the sections side thereof tomove upwardly as it is heated without friction on water passingdownwardly on the opposite side of the partition to the outlet.

3. A boiler comprising a water receiver extending along a single sidethereof, and waterheating sections extending laterally from saidreceiver in vertically disposed side-by-side relation and communicatingat the upper and lower ends thereof with said receiver, said sectionshaving openings therethrough mating andk providing a combustion chamber.

4. A boiler comprising a main water receiver, and removablewater-heating sections extending laterally from the receiver, saidreceiver having water inlets and outlets at its upper and lower portionscommunicating the sections with the receiver, a partition in the lowerportion of the receiver permitting water on the sections side to moveupwardly as it is heated without friction on water passing downwardly onthe opposite side of the partition to the outlet, and a waterheatingcoil mounted in said receiver above said partition for location in thepath of the upwardly and downwardly moving water.

5. A boiler comprising a water receiver extending along a single sidethereof, and waterheating sections extending laterally from saidreceiver in vertically disposed side-by-side relation and communicatingat the upper and lower ends thereof with said receiver, said sectionshaving openings therethrough mating and providing a combustion chamberaround which the water in said sections is caused to circulate, andpartitions in each section dividing the same into multiple passagewayscausing the water to circulate in multiple channels and therebyproviding for thorough heating.

6. A boiler comprising a water receiver, and water-heating sectionsextending laterally from said receiver in vertically disposedside-by-side relation and communicating at the upper and lower endsthereof with said receiver, said sections having base portions engagingand apertured to provide a combustion chamber extending through thesame, and said sections above said base portions being reduced inthickness to provide narrow upstanding water tubes spaced apart for thepassage of heat from said combustion chamber therebetween.

'7. A boiler comprising a water receiver, and water-heating sectionsextending laterally from said receiver in vertically disposedside-by-side relation and communicating at the upper and lower endsthereof with said receiver, said sections having base portions engagingand apertured to provide a combustion chamber extending through thesame, and said sections above said base portions being reduced inthickness to provide narrow upstanding water tubes spaced apart for thepassage of heat from said combustion chamber therebetween, the reducedportions having external heat baffling fins thereon directing the heatpassing between said reduced portions in tortuous paths.

8. A boiler comprising a water receiver, and water-heating sectionsextending laterally from said receiver in vertically disposedside-by-side relation and communicating at the upper and lower endsthereof with said receiver, said sections having base portions engagingand apertured to provide a combustion chamber extending through thesame, and said sections above said base portions being reduced inthickness to provide narrow upstanding water tubes spaced apart for thepassage of heat from said combustion chamber therebetween, the reducedportions having external heat bailling fins thereon directing the heatpassing between said reduced portions in tortuous paths, said fins beingspaced apart vertically and endwise to cause the heat to pass back andforth along the same as said heat rises.

WENDEL M. ROTH.

